STATUS OF TECHNOLOGY
DEVELOPMENT

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  • STATUS OF TECHNOLOGY
    DEVELOPMENT

Patent Application and Registration

Patent No Application No. Application Date Registration Date Name of Invention
No. 0145394 No.1997-0007891 1997. 04. 16. 1999. 02. 12. Hearth roll featuring
excellent durability for heat
furnace of hot rolling
No. 0421128 No. 2001-0069119 2001. 11. 07. 2004. 02. 20. Radiant Tube in Annealing
Furnace System
No.0320304 No.1999-0021744 1999. 06. 11. 2001. 12. 27. Heat exchanger for
Radiant Tube
No. 0322855 No.1999-0017535 1999. 05. 17. 2002. 01. 18. Hole construction of long axis